Warning door for cold rolling production line

The utility model relates to a warning door for a cold rolling production line, which comprises a warning door, the warning door comprises two support rods arranged on the ground, and a protective door is arranged between the two support rods; the left end of the protective door is hinged to the supporting rod at the left end, so that an inspector can enter a cold rolling production line through the protective door to inspect strip steel; the right end of the protective door is connected with the supporting rod at the right end through an opening and closing assembly, and a warning assembly used for warning workers is arranged on the front surface of the protective door. The device is simple in structure and convenient to operate, can play a role in warning workers, and avoids safety accidents caused by the fact that the workers start a cold rolling production line when inspectors inspect strip steel. 本实用新型涉及一种用于冷轧产线的警示门，包括警示门，所述警示门包括设置在地面上的两个支撑杆，两个所述支撑杆之间设置有一防护门；所述防护门的左端铰接在左端的所述支撑杆上，以利于检验人员通过防护门进入冷轧产线对带钢进行检验